/Engine/Plugins/Enterprise/DatasmithContent/Source/DatasmithContent/Public/DatasmithImportOptions.h
Notable feature: forces a full serialization of its properties (by opposition to the standard delta serialization which stores only the diff wrt the CDO) The intent is to store the exact options used in a previous import.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UDatasmithOptionsBase : public [UObject](API\Runtime\CoreUObject\UObject\UObject)